Marlin(R) Lever Action Gen 2 scope mount rail provides a Picatinny rail for mounting optics to your rifle. Updated with Picatinny Mil-Std 1913 rail profile specifications and new longer rail length. 6 pre-drilled mounting holes to fit most of the Marlin Lever Action rifles and a few of the semi-auto rifles. Bolts directly to pre-drilled & tapped receiver. Includes 6 mounting screws and tool. Center see-through channel allows the use of most of the iron sights.Features: Black Anodized Aluminum Construction Length: 5.4" HeightL 0.36 Weight: 1.0 oz